Is my snail lazy?

This is a discussion on Is my snail lazy? within the Invertebrates forums, part of the Freshwater and Tropical Fish category; -->
I know nothing about snails.
I just got this one a week ago or so. (The store called it a &quot;Gold&quot; snail -- is ...

I know nothing about snails.
I just got this one a week ago or so. (The store called it a "Gold" snail -- is that the same as a "Mystery Snail?")
I read other people's posts saying that their snails crawl around the tank constantly. My snail doesn't. He stays in the same place all day. (are snails nocturnal?) I know it's alive, since it closes up tight when bothered and it is in a different place every morning. But he's always on the "ground" I've only once found him up on a wall. Should he be more active? Is there anything I can do to encourage him to be more lively?

What's your pH and hardness? That shell looks awful pitted to me, which means either your snail isn't getting enough calcium (via foods or from the water directly) or the pH is low enough that it's corroding his shell (or both). This leads to unhappy snails, which could be part of his laziness.